Rotary crusher



(No Model.) 2 Sheets-Sheet 1. N.GAMPBELL. ROTARY ORUSHER Patented Nov. 16, 1897..

N Wu H wnN I 7////// //////f//////d U NQQM WITNESSES n rromvns I 2 Sheets-Sheet 2.

(No Model.)

.NQOAMPBELL.

ROTARY GRUSHER.

No. 593,799. Patented Nov. 16, 1897.

" WITNESSES:

BY I Fri/W ATTORNEYS 7 UNIT D I STATES PAT NT OFFICE.

NEWMAN CAMPBELL, OF HELENA, MONTANA.

ROTARY QRUSHER.

SPECIFICATION forming part of Letters Patent No. 593,799, dated November 16, 1897. Application filed December 5,1895} Serial No. 571,132. (No model.)

To all whom it may concern.-

Be it known that I, NEWMAN CAMPBELL, a citizen of the United States, residing at Helena, in the county of Lewis and Clarke, in the State of Montana, have invented certain new and useful Improvements in RotaryOre-Pulverizers and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part'of this specification.

My invention relates to rotary ore-pulverizers; and the object is to provide a simple, effective, and durable device of this class.

To this end the novelty consists in the construction, combination, and arrangement of the same, as will be hereinafter more fully described, and particularly pointed out in the claim.

In the accompanying drawings the same reference-characters indicate the same parts of the invention.

Figure 1 is a longitudinal section of my improved rotary ore -pulverizer. Fig. 2 is a side elevation; Fig. 3, a central vertical transverse section of the same. Fig. l'is a sectional detail of the diagonally-arranged screens.

A represents an annular rotating shell or barrel supported on friction-rollers a a, mo 11 nted in the frame B. 0 represents a gear-wheel cast integral with said shell and meshing with a pinion D, fixed on the inner end of a rotating shaft, E, journaled in a bracket E, formed integral with one of the standards I, and by. this means the shell is caused to r0- tate in the direction of the arrow shown in Fig. 3.

K represents a horizontal shaft provided at one end with a driving-pulley L and journaled in the bearing-boxes I I, secured in the standards I, and vertically adjustable therein by means of the screws 1, and said shaft is adapted to rotate eccentrically with the shell A, as shown in Fig. 3. h h represent integral vertical arms formed on said standards, and to their inner faces are bolted the circular splash-guards G G, provided with eccentrically-arranged alined orifices through which the shaft K passes.

H represents a hopper on the outside of each splash-guard, and its lower end communicates with the interior of the shell A and through which the material to be treated is passed.

M M represent a pair of parallel disks fixed on the shaft K and revolving with it within the shell. 0 0 represent a series of cylindrical spindles, the outer ends of which are fixed in said disks equidistant from and parallel with the shaft 'K, and on each of the spindles O is pivoted the inner end' of a beater-arm N. p

P represents an annular anvil secured within the shell androtating with it, and the lower surface of its inner face receives the impact or blow of the beater-arms N. 1

Q represents the screen-frame, in which is annularly secured a series of segmental screens R, the inner faces of which are protected from the flying particles of rock and ore by a series of radial slats S, diagonally arranged with reference to each other, as

shown in Fig. 4, to intercept the large pieces faces of the disks M and carries with it any particles of dust and grit that it meets on its way. The water as it passes out of the shell through the lowermost screens R carries with it the ore, which'is sufficiently pulverized to pass through the meshes of said screens, and the water and ore are then conducted by the flaring flanges X X into inclined troughs, (not shown,) whence it is led away for further I treatment.

The operation of the machine is as'follows: The broken ore is fed into the revolving shell or barrel A through the hoppers H- H, the shell revolving to the left, as indicated by the arrow, arranged contiguous to the annular anvil P, as shown in Fig. 2, and the shaft K,

disks M, and beater-arms N to the right, as indicated by the second arrow, arranged above the disk in the same figure. It may be here stated that the motion of the shell is comparatively slow as compared with the motion of the shaft K, which is rotated at a sufficient rate of speed to throw the beater-arms N radially outward by centrifugal force after they leave the anvil and thus accelerate the force of the blow when they again come in contact with it, effectually and rapidly comminuting the ore. The comminutin g operation is further advanced after the blow is struck by the triturating effect of the weight of the beaterarms dragging or rubbing the material over the face of the anvil in an opposite direction to that in which the anvil is traveling.

Although I have specifically described the construction and relative arrangement of the several elements of my invention I do not desire to be confined to the same, as such changes or modifications may be made as clearly fall within the scope of my invention without departing from the spirit thereof.

Having thus fully described my invention, what I claim as new and useful, and desire to secure by Letters Patent of the United States, 1s-

A rotary ore-pulverizer, comprising the rotary shell or barrel Z, provided with the ex ternal gear-wheel C, the annular integral flaring flanges X X and the screen-frame Q, the segmental screens R R, and the diagonallyarranged slats S secured therein, and the annular anvil P located within and carried by said shell, in combination with the shaft E, the pinion D fixed on said shaft and meshing with the gear-wheel O on the shell A, the horizontal shaft K mounted in the bearings I adjustably secured in the standards I I, the parallel splash-guards G G provided with the hoppers H H, and secured to the Vertical integral arms h h of the bearings I I, the parallel disks M M fixed on said shaft K, the

spindles O O fixed in said disks at equidistant 4 NEWMAN CAMPBELL.

IVitnesses:

JAMES GILCHRIST, CHARLES PETERSON. 

